JPS5494756A - Method of controlling aerobically denitrifying process - Google Patents
Method of controlling aerobically denitrifying processInfo
- Publication number
- JPS5494756A JPS5494756A JP252178A JP252178A JPS5494756A JP S5494756 A JPS5494756 A JP S5494756A JP 252178 A JP252178 A JP 252178A JP 252178 A JP252178 A JP 252178A JP S5494756 A JPS5494756 A JP S5494756A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- aerobically
- night soil
- orp
- denitrifying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE: To easily control the denitrifying process of night soil aerobically by utilizing the fact that an ORP is in the range of -100 to -400mV widely when a DO varies in narrow of 0 to 1ppm in the aerobically denitrifying process of the night soil.
CONSTITUTION: Night soil is introduced from a night soil supply tube 4 into an aerobically digesting tank 1 and aerated by an aerobic unit 6 to be activated by returning sludge returned from a settling basin 3. Then, the mixture liquid after the digestion in a digesting tank 2 is returned to the tank 1. The digested mixture liquid is denitrified by the activated sludge bacteria and denitrifying bacteria in the tank 1. That is, ammonia nitrogen in the soil becomes nitrogen oxide by means of the digestion, and the nitrogen oxide becomes inactive nitrogen in the tank 1. An ORP detector 9 is inserted into the tank 1 at that time. The detected result of the detector 9 is applied to a controller 10 to thereby control an air compressor 5 of the unit 6 so as to control the ORP in the tank 1.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP252178A JPS5494756A (en) | 1978-01-10 | 1978-01-10 | Method of controlling aerobically denitrifying process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP252178A JPS5494756A (en) | 1978-01-10 | 1978-01-10 | Method of controlling aerobically denitrifying process |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5494756A true JPS5494756A (en) | 1979-07-26 |
Family
ID=11531670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP252178A Pending JPS5494756A (en) | 1978-01-10 | 1978-01-10 | Method of controlling aerobically denitrifying process |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5494756A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57113895A (en) * | 1981-01-07 | 1982-07-15 | Agency Of Ind Science & Technol | Denitrification treatment of water |
JPS62201698A (en) * | 1986-02-28 | 1987-09-05 | Ebara Infilco Co Ltd | Treatment of organic waste liquid |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5120072A (en) * | 1974-08-12 | 1976-02-17 | Mitsubishi Heavy Ind Ltd | CHITSUSOSANKABUTSUOGANJUSURU EKITAINO DATSUCHITSUSOSHORIHOHO OYOBI SONOSOCHI |
-
1978
- 1978-01-10 JP JP252178A patent/JPS5494756A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5120072A (en) * | 1974-08-12 | 1976-02-17 | Mitsubishi Heavy Ind Ltd | CHITSUSOSANKABUTSUOGANJUSURU EKITAINO DATSUCHITSUSOSHORIHOHO OYOBI SONOSOCHI |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57113895A (en) * | 1981-01-07 | 1982-07-15 | Agency Of Ind Science & Technol | Denitrification treatment of water |
JPS62201698A (en) * | 1986-02-28 | 1987-09-05 | Ebara Infilco Co Ltd | Treatment of organic waste liquid |
JPH0312956B2 (en) * | 1986-02-28 | 1991-02-21 | Ebara Infuiruko Kk |
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